Application of the Terrestrial 3D Laser Scanning in Room and Pillar Trial at CSM Mine

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F18%3A00496339" target="_blank" >RIV/68145535:_____/18:00496339 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Application of the Terrestrial 3D Laser Scanning in Room and Pillar Trial at CSM Mine

Popis výsledku v původním jazyce

3D laser scanning is a unique technology used for the description and subsequent modeling of realnshape of spatially complex underground mining environment. Groundbreaking was its application innthe pilot deployment of the Room and Pillar method at the CSM mine, where this method was usednfor the first time within the Upper Silesian Coal Basin, also known to have one of the most difficultnmining and geomechanical conditions in the world. Very difficult mining conditions at depth over 800nm warranted searching for complex geotechnical tool or method that would capture all changesnwithout distortion. Despite some shortcomings, 3D laser scanning was selected, although there is stillnno suitable device for dusty and humid mining environment. During the pillar development phase,ncomprehensive geotechnical monitoring was undertaken including the frequent scanning of pillarnmovement using 3D laser scanning technology. Based on repeated time-separated measurements,nspatio-temporal analyses of deformation changes during ongoing mining were carried out. Thesenanalyses captured dynamic changes in coal rib, roof and floor movements of designated roadwaysnwhile developing the pillar panel. In addition, time dependent long term post-mining measurementsnquantified additional strata movements within the panel enabling assessment of the long term pillarnand mine roadway stability. The time-lapse scanning indicated variable pillar rib movement withnmaximum measured displacements of 60 cm. The scans indicated that in most cases, the bottom of thenseam displaced more than the top of the rib side due to low floor strength causing large floor heave ofnup to 100 cm. During the 3-year monitoring, more than 2 billion spatial points were captured that cannbe used for further analysis.

Název v anglickém jazyce

Application of the Terrestrial 3D Laser Scanning in Room and Pillar Trial at CSM Mine

Popis výsledku anglicky

3D laser scanning is a unique technology used for the description and subsequent modeling of realnshape of spatially complex underground mining environment. Groundbreaking was its application innthe pilot deployment of the Room and Pillar method at the CSM mine, where this method was usednfor the first time within the Upper Silesian Coal Basin, also known to have one of the most difficultnmining and geomechanical conditions in the world. Very difficult mining conditions at depth over 800nm warranted searching for complex geotechnical tool or method that would capture all changesnwithout distortion. Despite some shortcomings, 3D laser scanning was selected, although there is stillnno suitable device for dusty and humid mining environment. During the pillar development phase,ncomprehensive geotechnical monitoring was undertaken including the frequent scanning of pillarnmovement using 3D laser scanning technology. Based on repeated time-separated measurements,nspatio-temporal analyses of deformation changes during ongoing mining were carried out. Thesenanalyses captured dynamic changes in coal rib, roof and floor movements of designated roadwaysnwhile developing the pillar panel. In addition, time dependent long term post-mining measurementsnquantified additional strata movements within the panel enabling assessment of the long term pillarnand mine roadway stability. The time-lapse scanning indicated variable pillar rib movement withnmaximum measured displacements of 60 cm. The scans indicated that in most cases, the bottom of thenseam displaced more than the top of the rib side due to low floor strength causing large floor heave ofnup to 100 cm. During the 3-year monitoring, more than 2 billion spatial points were captured that cannbe used for further analysis.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20301 - Mechanical engineering

Projekt

<a href="/cs/project/LO1406" target="_blank" >LO1406: Institut čistých technologií těžby a užití energetických surovin - Projekt udržitelnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

10th Asian Rock Mechanics Symposium - The ISRM International Symposium for 2018

ISBN

978-981-11-9003-2

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

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Název nakladatele

ISRM Singapur

Místo vydání

Singapur

Místo konání akce

Singapur

Datum konání akce

29. 10. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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